Pump for deep wells.



P. W. KROGH.

FOR DEEP WELLS.

Patented July 6, 1909.

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Patented July 6, 1909.

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PUMP FOB DEEP WELLS. APPLICATION FILED r33. as, 1906.

927,057, Patented July 6, 1909.

3 SHEETS-SKIRT 3.

FERDINAND W. KROGII, OF SAN FRANCISCO, CALIFORNIA.

PUMP FOR DEEP WELLS.

Specification of Letters Patent.

Application filed. February 26, 1906.

Patented July 6, 1909.

Serial N0. 303,040.

To all whom it may concern:

Be it known that I, FERDINAND W. KnoeI-I, a citizen of the UnitedStates, residing in the city and county of San Francisco, State ofCalifornia, have invented certain new and useful Improvements in Pumpsfor Deep Wells, of which the following is a specification.

My invention relates to deep well pumps, and more especially to thevalves of the pump, and mechanism for rendering the same accessible.

In carrying out my invention I proceed as follows :Take the case of adouble acting pump, for example-I provide a sleeve which fits within thewell casing, and may be lowered in the same to the desired point nearthe bottom. This sleeve carries both discharge valves and one of thesuction valves ordinarily. The suction valve and one of the dischargevalves I seat upon the well casing, through an opening in the sleeve,and this opening is caused to register with the seat by means of aguide, such as a slot and pin, which acts upon the sleeve as it is lowered into place. To keep the sleeve in position, when down, I provide itwith one or more dogs to bite into the well casing. When the sleeve isto be raised the piston is drawn up and engages these dogs and releasesthem from their hold on the casing, and the sleeve is then drawn outwith the piston, and carries the valves with it. The second suctionvalve, which is lower down in the well casing may be similarly arrangedin a sleeve, or in place of the sleeve I may use its equivalent, acentral stem to support and connect the parts. I also use a bypass inconnection with the above, by which the water is carried from below thepiston on the downward stroke of the same.

The invention consists in the various devices and combinations of theabove construction, and in such other instrumentalities as may bedescribed hereinafter and more particularly defined in the claims at theend hereof.

In the accompanying drawings I have shown my invention in its best formas applied to a double acting deep well pump.

Figure 1 is a sectional longitudinal view, showing part of a Well withthe casing and the sleeve therein carrying the upper valves,

and showing in elevation the piston below the sleeve. Fig. 2 is asimilar view showing the lower end. of the well easing with the lowervalves, and the piston above them, and the devices for lifting them outby means of the piston. Fig. 3 shows the piston engaging the centralstem of the lower valves, and the dogs of the sleeve, carrying the uppervalves, and raising those parts with it as it is drawn up. Fig. 4 is across section on line 41, a of Fig. 2, and shows the hooks on the underside of the piston for raising the lower valves.

1 represents the well, and 2 the casing.

3 is the bypass of the casing.

4 is the piston, and 5 the piston rod.

6 is a sleeve, fitting within the well casing 2, and adapted to rest bya flange or shoulder 7 upon a shoulder S of the casing.

9 is the discharge valve for the lower end i of the pump cylinder. Thisvalve is carried by the sleeve, as shown, but is seated upon the casingover the discharge orifice 10, which it is adapted to close. The casingis provided with a groove 11, which engages a pin 12 on the sleeve, andthus insures the sleeve coming to place so that the valve 9 willregister with its seat. The sleeve, of course, has an opening in itsside in which the valve swings.

13 are the discharge valves for the upper end of the pump cylinder.These valves are also carried by the sleeve, and are arranged centrallyon inclined seats 14, as shown, so that the water passing through themhas a direct upward course to the final outlet.

15 is a central tube or sleeve about the pisston rod 5, and carries astui'ling box 16 to prevent leakage about the rod.

17 is the suction valve for the upper end of the pump cylinder. It issupported on the sleeve 6 similarly to the valve 9, and like that valve,seats upon the casing over the suction opening 18, and its registertherewith is insured by the same means as that of the valve 9, namely,the pin and groove, 11, 12. Near the bottom of the sleeve, or at otherconvenient point, I arrange dogs 19, which normally engage the wellcasing 2 by their pointed ends as shown. These dogs are disengaged fromthe casing, when it is desired to draw up the sleeve, by the piston 4,which, being drawn up comes against the tails 20 of the dogs and turnsthem on their pivots 21, as shown in Fig. 3. i

22 are the suction valves for the lower end of the pump cylinder. Thesevalves are arranged on inclined seats 23 on a central spider or skeletonconsisting of a ring 24, a ring 25, and a central stem 26 connectingthose rings and oined to them by arms 27.

28 are springs to close the valves.

The spider rests upon a flange of the cz'ising at 29, and is maintainedin that position by the dogs 30, which bite the casing 2.

31 are arms depending from the bottom of the pump pistop, and are hookson the lower ends of these arms.

l/Vhen it is desired. to draw out the central spider from the casing,the piston is lowered till the hooks 32 pass below the dogs 30, it isthen turned to bring the hooks under the dogs, and then raised, when thehooks coming against the tails 33 of the dogs, turns them on theirpivots 34, to the position shown in Fig. 3, with their points free fromthe casing, when the whole mechanism may be withdrawn. To prevent injuryto the dogs by the turning of the piston, I provide a head 35 upon theupper end of the stem 26, against which the arms 31 contact when thepiston is turned to cause the hooks 32 to pass under the dogs.

I claim:-

1. In a deep well pump, the combination with the casing and the pistonand its red of valves arranged on opposite sides of the piston, separatesupports for said valves each provided with means for locking it inposition, and devices movable with the piston for releasing the lockingmeans and withdrawing the supports, one of said devices arranged belowthe piston.

2. In a deep well pump, the combination with the casing and the pistonand its rod of valves arranged on opposite sides of the piston, separatesupports for said valves each provided with means for locking it inposition, and devices movable with the piston for releasing the lockingmeans and withdrawing the supports, one of said devices arranged belowthe piston and normally tree from engagement with the lowervalve-support.

3. In a deep well pump, a piston and a piston casing having a lateralopening, combined with a sleeve slid ably mounted in the piston casingand provided with an opening registered with the lateral opening thereofand with a valve seat and with means for locking it removably in placein the casing, said sleeve also provided with a valve for controllingcommunication through the registered openings in the casing and sleeveand with a second valve on said valve seat, and means moving with thepiston and arranged to release the locking means and to remove thesleeve and valves With the piston.

4.. In a deep well pump, a piston casing having a lateral opening and apiston, combined with a sleeve slidably mounted in the casing and havingits side wall provided with an opening which is registered with thelateral opening of the casing and with a valve which controlscommunication through. these openings, said sleeve also provided with avalve seat arranged inclinatorily and with a second valve upon saidscat, means for looking the sleeve removably in place in the casing andmeans moving with the piston and arranged to release the locking meansand to remove the sleeve and valves with the piston.

5. In a deep well pump, in cmnliiination with the casing, a valvecarrying sleeve adapted to be loweredinto the casing to bring the valvesinto operative position, and valves mounted on said sleeve, and seatsfor such valves arranged upon the casing.

63. In a deep well pump, a casing and a valve support, having lateralregistered openings, a valve carried by the support and seated on thecasing and controlling communication oi the same with each other throughsaid openings.

7. In a deep well pump, a casing and a valve support, having lateralregistered open a ings, a valve carried by the support and seated on thecasing and controlling communication of the same with each other throughsaid openings, said support slidably mounted in the casing, means forlocking in its normal position, therein, and means for releasing thelock and raising the support from the casing.

8. In a deep well pump, a casing having a plurality of lateral o'ienings, a valve support slid ably mounted in the casing and having aplurality of lateral openings registered with those of the casing, andprovided with valvular means controlling said registered openings andwith other valvular means between its lateral openings, valvular meansslid ably supported in the casing and arranged below the lateralopenings, a piston and means connected with the piston, for raising thevalves and their supports from the casing.

9. In a deep well pump, a casing having discharge and suction openings,a sleeve slid.- ably mounted in said casing and provided with lateralopenings registered with the discharge and suction openings thereof andwith valves which control said openings, said sleeve also provided withdischarge valves arranged between said openings, suction valves belowsaid openings, locking means for holding the parts in proper position inthe casing, a piston and means connected with the piston and adapted torelease the locking means and raise the sleeve and valves from thecasing.

10. In a deep well pump, a casing having I discharge and suctionopenings, a sleeve slidably mounted in said casing and provided withlateral openings which are registered with said discharge and suctionopenings re spectively, said sleeve also provided with the supportvalves which control said openings and with a discharge valve arrangedbetween said openings, means for holding the sleeve in the casing andmeans adapted to raise the sleeve and said valves with the piston.

11. In a deep well pump, a piston having depending projections providedwith hooks, a valve and its support arranged below the piston and havinglocking means adapted to be released by the hooks, said hooks andlocking means being normally free from engagement with each other andrelatively movable to ell ect such engagement.

12. In a deep well pump, a casing, a piston, a valve and its supportarranged below the piston and having dogs to engage the casing, andprojections depending from the piston and adapted to release said dogsand connect the piston and valve support for unitary removal from orinsertion into the casing.

13. In a deep well pump, a casing, a piston, a valve and its supportarranged below the piston, said support having a head and dogs arrangedbelow the head and adapted to lock the support to the casing, saidpiston normally movable relatively to the support and provided withdepending hooked projeetions adapted to engage the dogs and release thesame from the casing and connect the piston and support with each otherfor unitary'removal from or insertion into the casing.

14:. In a deep well pump, a casing having discharge and suctionopenings, a piston and its red, a sleeve slidably mounted in the casingand provided above the piston with lateral openings which are registeredwith said discharge and suction openings respectively and with valveswhich control said openings, said sleeve also having valve seats betweensaid openings and discharge valves on said seats, means for holding thesleeve in the casing and means adapted to raise the sleeve and saidvalves with the piston.

15. In a deep well pump, a casing having a by-pass provided with alateral discharge opening, said casing also having a suction opening, asleeve slidably mounted in the casing and provided with openings andvalves, said valves adapted to close the discharge and suction openingsof the casing, said sleeve also provided with a discharge valve arrangedbetween its before-mentioned valves, a suction valve supported below theby-pass, a piston mounted to reciprocate between the sleeve and thelast-mentioned suction valve, and means whereby the sleeve and the lastmentioned valve may be removed from the casing with the piston.

16. In a deep well pump, a casing having a by-pass provided with alateral discharge opening, said casing also having a suction opening, asleeve slidably mounted in the casing and provided with openingsregistered with the openings in the casing and with valves adapted toclose the discharge and suction openings of the casing, said sleeve alsoprovided with a discharge valve arranged between its before-mentionedvalves and with means for looking it in position, a suction valvesupported below the by-pass, means for looking it in position, a pistonmounted to reciprocate between the sleeve and the last-mentioned suctionvalve, and means movable with the piston and adapted to engage thelocking means of the sleeve and support of the suction valve forremoving the same with the piston.

In testimony whereof I have hereto set my hand in presence of twosubscribing witnesses this 8th of December, 1905.

FERDINAND W. KROGII.

Witnesses:

WV. S. BATES, A. S. FARE.

